"
stone, spending all my nights
Trying my best to distinguish your reasons.
Trying my best
This verse is describing the theory of relativism, or that everybody has their own truth. He's trying to figure out what exactly is right and wrong for him, and what is right and wrong for the other person (who is more than likely a girl). Also, he's asking the reason why they chose to go down the path that they did, being a negative part of society from the lyrics.